CN116134924A

CN116134924A - Cross-carrier scheduling method and device and storage medium

Info

Publication number: CN116134924A
Application number: CN202180002466.3A
Authority: CN
Inventors: 池连刚
Original assignee: Beijing Xiaomi Mobile Software Co Ltd
Current assignee: Beijing Xiaomi Mobile Software Co Ltd
Priority date: 2021-08-09
Filing date: 2021-08-09
Publication date: 2023-05-16
Also published as: WO2023015423A1

Abstract

The invention provides a cross-carrier scheduling method, a device and a storage medium, wherein the cross-carrier scheduling method comprises the following steps: configuring an associated secondary cell associated with a target secondary cell (S101), the target secondary cell being a secondary cell configured to schedule a physical shared channel of the primary cell and/or the primary secondary cell; and in response to determining that the physical shared channel of the primary cell and/or the primary and secondary cells cannot be scheduled through the target secondary cell, switching a scheduling carrier carrying a Physical Downlink Control Channel (PDCCH) from the target secondary cell to an associated secondary cell (S102), or switching to the primary cell and/or the primary and secondary cell, wherein the PDCCH is used for scheduling the physical shared channel of the primary cell and/or the primary and secondary cell. By scheduling the rapid switching of the carrier wave, the problem of insufficient PDCCH resources of the primary cell and/or the primary and secondary cells is solved, the change of load and link quality can be better adapted, and the utilization rate of system resources is improved.

Description

Cross-carrier scheduling method and device and storage medium

Technical Field

The disclosure relates to the field of communication, and in particular relates to a cross-carrier scheduling method and device and a storage medium.

Background

Initial deployment of new generation mobile communication technologies typically occurs in areas of high traffic density and high demands on new services. The coverage is then expanded step by step. In the process of gradually deploying new access technologies, hybrid coverage of new and old technologies becomes a necessary requirement for operator networks.

Even in areas where new technology has been deployed, it is often necessary to retain the earlier technology and coexist for a significant period of time to ensure continued service is provided for old devices that do not support the new technology. The 5G (5 th Generation Mobile Communication Technology ) NR (New Radio, new air interface) may be deployed in the same spectrum as LTE (Long Term Evolution ), so that the total spectrum capacity may be dynamically shared between the two technologies, and the spectrum utilization is higher. When LTE and NR share a Primary carrier, there is a problem that PDCCH (Physical Downlink Control Channel ) resources on PCell (Primary Cell) and/or PSCell (Primary Secondary Cell, primary and secondary cells) are insufficient.

Disclosure of Invention

In order to overcome the problems in the related art, embodiments of the present disclosure provide a cross-carrier scheduling method and apparatus, and a storage medium.

According to a first aspect of an embodiment of the present disclosure, there is provided a cross-carrier scheduling method, which is performed by a network side device, including:

configuring an associated secondary cell associated with a target secondary cell, the target secondary cell being a secondary cell configured to schedule a physical shared channel of a primary cell and/or a primary secondary cell;

And in response to determining that the physical shared channel of the primary cell and/or the primary and secondary cells cannot be scheduled through the target secondary cell, switching a scheduling carrier carrying a Physical Downlink Control Channel (PDCCH) from the target secondary cell to the associated secondary cell, wherein the PDCCH is used for scheduling the physical shared channel of the primary cell and/or the primary and secondary cells.

Optionally, the method further comprises:

and sending the configuration information of the associated auxiliary cell to the terminal.

Optionally, the configuration information of the associated secondary cell includes at least one of:

a control resource set of the associated secondary cell;

the search space of the associated auxiliary cell; and/or

And the index value of the primary cell and/or the primary and secondary cells in the scheduling information of the associated secondary cells.

Optionally, the determining that the primary cell and/or the physical shared channel of the primary and secondary cells cannot be scheduled by the target secondary cell includes at least one of:

in response to determining that the target secondary cell is deactivated, determining that a physical shared channel of the primary cell and/or primary secondary cell cannot be scheduled by the target secondary cell; and/or

And determining that the physical shared channel of the primary cell and/or the primary and secondary cells cannot be scheduled through the target secondary cell in response to receiving the target secondary cell radio link failure RLF indication information sent by the terminal.

According to a second aspect of the embodiments of the present disclosure, there is provided a cross-carrier scheduling method, which is performed by a network side device, including:

in response to determining that the physical shared channel of the primary cell and/or the primary and secondary cells cannot be scheduled by a target secondary cell, determining that an associated secondary cell associated with the target secondary cell is not configured, the target secondary cell being a secondary cell configured to schedule the physical shared channel of the primary cell and/or the primary and secondary cells;

and switching a scheduling carrier carrying a Physical Downlink Control Channel (PDCCH) from the target auxiliary cell to the main cell and/or the main auxiliary cell, wherein the PDCCH is used for scheduling a physical shared channel of the main cell and/or the main auxiliary cell.

According to a third aspect of embodiments of the present disclosure, there is provided a cross-carrier scheduling method, the method being performed by a terminal and comprising:

receiving configuration information of an associated auxiliary cell associated with a target auxiliary cell sent by network side equipment, wherein the target auxiliary cell is an auxiliary cell configured to schedule a physical shared channel of a main cell and/or a main auxiliary cell;

determining that the network side equipment cannot schedule a physical shared channel of a main cell and/or a main and auxiliary cell through the target auxiliary cell;

based on the configuration information of the associated auxiliary cell, determining that the network side equipment switches a scheduling carrier carrying a Physical Downlink Control Channel (PDCCH) from the target auxiliary cell to the associated auxiliary cell, wherein the PDCCH is used for scheduling a physical shared channel of a main cell and/or the main and auxiliary cells.

Optionally, the determining that the network side device cannot schedule the physical shared channel of the primary cell and/or the primary and secondary cells through the target secondary cell includes at least one of the following:

in response to determining that the target secondary cell is deactivated, determining that the network side device cannot schedule a physical shared channel of a primary cell and/or a primary secondary cell through the target secondary cell; and/or

And in response to the wireless link failure RLF indication information of the target auxiliary cell is sent to the network side equipment, determining that the network side equipment cannot schedule a physical shared channel of a main cell and/or a main and auxiliary cell through the target auxiliary cell.

a control resource set of the associated secondary cell;

the search space of the associated auxiliary cell; and/or

According to a fourth aspect of embodiments of the present disclosure, there is provided a cross-carrier scheduling method, the method being performed by a terminal and comprising:

determining that the network side equipment cannot schedule the physical shared channel of the main cell and/or the main and auxiliary cells through a target auxiliary cell, wherein the target auxiliary cell is an auxiliary cell configured to schedule the physical shared channel of the main cell and/or the main and auxiliary cells;

and in response to determining that the configuration information of the associated auxiliary cell associated with the target auxiliary cell, which is sent by the network side equipment, is not received, determining that the network side equipment switches a scheduling carrier carrying a Physical Downlink Control Channel (PDCCH) from the target auxiliary cell to a primary cell and/or a primary auxiliary cell, wherein the PDCCH is used for scheduling a physical shared channel of the primary cell and/or the primary auxiliary cell.

And responding to the received target auxiliary cell radio link failure RLF indication information sent by the terminal, and determining that a physical shared channel of a main cell and/or a main auxiliary cell cannot be scheduled through the target auxiliary cell.

a control resource set of the associated secondary cell;

the search space of the associated auxiliary cell; and/or

According to a fifth aspect of embodiments of the present disclosure, there is provided a cross-carrier scheduling apparatus, which is applied to a network side device, including:

a configuration module, configured to configure an associated secondary cell associated with a target secondary cell, the target secondary cell being a secondary cell configured to schedule a physical shared channel of a primary cell and/or a primary secondary cell; and

And the first switching module is used for switching a scheduling carrier carrying a Physical Downlink Control Channel (PDCCH) from the target auxiliary cell to the associated auxiliary cell in response to determining that the physical shared channel of the main cell and/or the main auxiliary cell cannot be scheduled through the target auxiliary cell, wherein the PDCCH is used for scheduling the physical shared channel of the main cell and/or the main auxiliary cell.

According to a sixth aspect of the embodiments of the present disclosure, there is provided a cross-carrier scheduling apparatus, which is applied to a network side device, including:

a first determining module, configured to determine that an associated secondary cell associated with a target secondary cell is not configured in response to determining that a primary cell and/or a physical shared channel of a primary and secondary cell cannot be scheduled by the target secondary cell, the target secondary cell being a secondary cell configured to schedule a physical shared channel of the primary cell and/or the primary and secondary cell; and

and the second switching module is used for switching the scheduling carrier wave carrying the Physical Downlink Control Channel (PDCCH) from the target auxiliary cell to the main cell and/or the main auxiliary cell, wherein the PDCCH is used for scheduling the physical shared channel of the main cell and/or the main auxiliary cell.

According to a seventh aspect of embodiments of the present disclosure, there is provided a cross-carrier scheduling apparatus, which is applied to a terminal, including:

The receiving module is used for receiving configuration information of an associated auxiliary cell associated with a target auxiliary cell sent by network side equipment, wherein the target auxiliary cell is an auxiliary cell configured to schedule a physical shared channel of a main cell and/or a main auxiliary cell;

a second determining module, configured to determine that the network side device cannot schedule a physical shared channel of a primary cell and/or a primary and secondary cell through the target secondary cell; and

and a third determining module, configured to determine, based on the configuration information of the associated secondary cell, that the network side device switches a scheduling carrier carrying a physical downlink control channel PDCCH from the target secondary cell to the associated secondary cell, where the PDCCH is used for scheduling a physical shared channel of the primary cell and/or the primary secondary cell.

According to an eighth aspect of embodiments of the present disclosure, there is provided a cross-carrier scheduling apparatus, which is applied to a terminal, including:

a fourth determining module, configured to determine that the network side device cannot schedule the physical shared channel of the primary cell and/or the primary and secondary cells through a target secondary cell, where the target secondary cell is a secondary cell configured to schedule the physical shared channel of the primary cell and/or the primary and secondary cells; and

and a fifth determining module, configured to determine, in response to determining that configuration information of an associated secondary cell associated with the target secondary cell sent by the network side device is not received, that the network side device switches a scheduling carrier carrying a physical downlink control channel PDCCH from the target secondary cell to a primary cell and/or a primary secondary cell, where the PDCCH is used for scheduling a physical shared channel of the primary cell and/or the primary secondary cell.

According to a ninth aspect of the embodiments of the present disclosure, there is provided a computer readable storage medium storing a computer program for executing the cross-carrier scheduling method of any one of the above network side device sides.

According to a tenth aspect of embodiments of the present disclosure, there is provided a computer readable storage medium storing a computer program for executing the cross-carrier scheduling method of any one of the above terminals.

According to an eleventh aspect of the embodiments of the present disclosure, there is provided a cross-carrier scheduling apparatus, including:

a processor;

a memory for storing processor-executable instructions;

the processor is configured to execute the cross-carrier scheduling method of any one of the network side devices.

According to a twelfth aspect of an embodiment of the present disclosure, there is provided a cross-carrier scheduling apparatus, including:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to perform the cross-carrier scheduling method of any of the above terminals.

The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:

In the embodiment of the disclosure, the network side equipment is configured as an associated auxiliary cell associated with the target auxiliary cell, and under the condition that the physical shared channel of the main cell and/or the main and auxiliary cells cannot be scheduled through the target auxiliary cell, the scheduling carrier carrying the Physical Downlink Control Channel (PDCCH) is switched to the associated auxiliary cell, wherein the PDCCH is used for scheduling the physical shared channel of the main cell and/or the main and auxiliary cells, so that the rapid switching of the scheduling carrier is realized, the problem of insufficient PDCCH resources of the main cell and/or the main and auxiliary cells is solved, the change of load and link quality can be better adapted, and the utilization rate of system resources is improved.

In the embodiment of the disclosure, the network side device may switch the scheduling carrier carrying the physical downlink control channel PDCCH from the target secondary cell to the primary cell and/or the primary secondary cell under the condition that the physical shared channel of the primary cell and/or the primary secondary cell cannot be scheduled through the target secondary cell and the associated secondary cell associated with the target secondary cell is not configured, where the PDCCH is used for scheduling the physical shared channel of the primary cell and/or the primary secondary cell, so as to implement fast switching of the scheduling carrier, and perform self-scheduling by the primary cell and/or the primary secondary cell, and thus, the network side device can better adapt to the load and link quality changes, and improve the system resource utilization.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.

Fig. 1 is a flow chart illustrating a cross-carrier scheduling method according to an exemplary embodiment.

Fig. 2 is a flow chart illustrating another cross-carrier scheduling method according to an example embodiment.

Fig. 3 is a flow chart illustrating another cross-carrier scheduling method according to an exemplary embodiment.

Fig. 4 is a flow chart illustrating another cross-carrier scheduling method according to an example embodiment.

Fig. 5 is a flow chart illustrating another cross-carrier scheduling method according to an example embodiment.

Fig. 6 is a flow chart illustrating another cross-carrier scheduling method according to an example embodiment.

Fig. 7 is a flow chart illustrating another cross-carrier scheduling method according to an example embodiment.

Fig. 8 is a block diagram of a cross-carrier scheduler, according to an example embodiment.

Fig. 9 is a block diagram of another cross-carrier scheduler, according to an example embodiment.

Fig. 10 is a block diagram of another cross-carrier scheduler, according to an example embodiment.

Fig. 11 is a block diagram of another cross-carrier scheduler, according to an example embodiment.

Fig. 12 is a schematic diagram of a configuration of a cross-carrier scheduling apparatus according to an exemplary embodiment of the present disclosure.

Fig. 13 is a schematic diagram of a structure of another cross-carrier scheduling apparatus according to an exemplary embodiment of the present disclosure.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the invention. Rather, they are merely examples of apparatus and methods consistent with aspects of the invention as detailed in the accompanying claims.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of at least one of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.

The cross-carrier scheduling method provided by the present disclosure is introduced from the base station side.

In the first scheme, under the condition that a main cell and/or a physical shared channel of the main and auxiliary cells cannot be scheduled through a target auxiliary cell, a scheduling carrier carrying a Physical Downlink Control Channel (PDCCH) is switched from the target auxiliary cell to an associated auxiliary cell.

An embodiment of the present disclosure provides a cross-carrier scheduling method, referring to fig. 1, fig. 1 is a flowchart of a cross-carrier scheduling method according to an embodiment, and the cross-carrier scheduling method may be used for a network side device, where the network side device includes, but is not limited to, a base station, and the method may include the following steps:

In step 101, an associated secondary cell associated with the target secondary cell is configured.

In the embodiments of the present disclosure, the target secondary cell may be an scsell, which refers to a secondary cell configured to schedule physical shared channels of the primary cell and/or the primary and secondary cells, where the physical shared channels include, but are not limited to, PDSCH (Physical Downlink Shared Channel ), and/or PUSCH (Physical Uplink Shared Channel, physical uplink shared channel).

In step 102, in response to determining that the primary cell and/or the physical shared channel of the primary and secondary cells cannot be scheduled by the target secondary cell, a scheduling carrier carrying a physical downlink control channel PDCCH is switched from the target secondary cell to the associated secondary cell.

The PDCCH is used for scheduling a physical shared channel of a primary cell and/or a primary and secondary cell.

In the above embodiment, the network side device may be configured to associate the secondary cell associated with the target secondary cell, and in the case that the physical shared channel of the primary cell and/or the primary and secondary cells cannot be scheduled by the target secondary cell, switch the scheduling carrier carrying the physical downlink control channel PDCCH to the associated secondary cell, where the PDCCH is used to schedule the physical shared channel of the primary cell and/or the primary and secondary cells, so as to implement fast switching of the scheduling carrier, solve the problem of insufficient PDCCH resources of the primary cell and/or the primary and secondary cells, and better adapt to the load and link quality changes, and improve the system resource utilization rate.

In some alternative embodiments, referring to fig. 2, fig. 2 is a flowchart of a cross-carrier scheduling method according to an embodiment, which may be used for a network side device, including but not limited to a base station, the method may include the following steps:

in step 201, an associated secondary cell associated with the target secondary cell is configured.

Wherein the target secondary cell is a secondary cell configured to schedule a physical shared channel of the primary cell and/or the primary and secondary cells.

In step 202, the configuration information of the associated secondary cell is sent to the terminal.

After configuring an associated secondary cell associated with a target secondary cell, the network side device may send configuration information of the associated secondary cell to the terminal.

In the embodiment of the present disclosure, the configuration information of the associated secondary cell may include, but is not limited to, at least one of the following: a control resource set of the associated secondary cell; and/or, the search space of the associated secondary cell; and/or, the index value of the primary cell and/or the primary and secondary cells in the scheduling information of the associated secondary cells.

In the embodiment of the present disclosure, the terminal side may determine that the physical shared channel of the primary cell and/or the secondary cell is scheduled by the scheduling carrier of the associated secondary cell based on the index value of the primary cell and/or the secondary cell in the scheduling information of the associated secondary cell. In addition, the terminal side may determine, based on at least one of CORESET (Control Resource Set) of the associated secondary cell and search space of the associated secondary cell, a resource location where the PDCCH is located on the scheduled carrier after the network side device switches the scheduled carrier to the associated secondary cell, so as to achieve the purpose of scheduling the physical shared channel of the primary cell and/or the primary and secondary cells after demodulating the PDCCH.

In step 203, in response to determining that the primary cell and/or the physical shared channel of the primary and secondary cells cannot be scheduled by the target secondary cell, a scheduling carrier carrying a physical downlink control channel PDCCH is switched from the target secondary cell to the associated secondary cell.

The PDCCH is used for scheduling a physical shared channel of the primary cell and/or the primary and secondary cells.

In the above embodiment, after configuring the associated secondary cell associated with the target secondary cell, the network side device may send configuration information of the associated secondary cell to the terminal, so as to perform scheduling carrier switching when it is determined that the primary cell and/or the physical shared channel of the primary and secondary cells cannot be scheduled by the target secondary cell, and switch the scheduling carrier from the target secondary cell to the associated secondary cell. The method solves the problem of insufficient PDCCH resources of the primary cell and/or the primary and secondary cells, can better adapt to the change of load and link quality, and improves the utilization rate of system resources.

In one possible implementation manner, the network side device may determine that the physical shared channel of the primary cell and/or the primary and secondary cells cannot be scheduled through the target secondary cell if it is determined that the target secondary cell is deactivated.

In another possible implementation manner, the network side device may determine that the primary cell and/or the physical shared channel of the primary and secondary cells cannot be scheduled by the target secondary cell when receiving the RLF (Radio Link Failure ) indication information of the target secondary cell sent by the terminal.

In another possible implementation manner, the network side device may determine that the physical shared channel of the primary cell and/or the primary secondary cell cannot be scheduled through the target secondary cell when determining that the target secondary cell is deactivated and receiving the RLF indication information of the target secondary cell sent by the terminal.

In the above embodiment, the network side device may determine that the primary cell and/or the physical shared channel of the primary and secondary cells cannot be scheduled by the target secondary cell according to different conditions, so as to perform scheduling carrier switching, which is simple and convenient to implement and has high availability.

In the second scheme, under the condition that the physical shared channel of the main cell and/or the main and auxiliary cells cannot be scheduled through the target auxiliary cell, the scheduling carrier carrying the Physical Downlink Control Channel (PDCCH) is switched from the target auxiliary cell to the main cell and/or the main and auxiliary cells.

An embodiment of the present disclosure provides a cross-carrier scheduling method, referring to fig. 3, fig. 3 is a flowchart of a cross-carrier scheduling method, which is shown in an embodiment, and may be used for a network side device, where the network side device includes, but is not limited to, a base station, and the method may include the following steps:

In step 301, in response to determining that the primary cell and/or the physical shared channel of the primary and secondary cells cannot be scheduled by the target secondary cell, it is determined that an associated secondary cell associated with the target secondary cell is not configured.

In another possible implementation manner, the network side device may determine that the physical shared channel of the primary cell and/or the primary and secondary cells cannot be scheduled through the target secondary cell when receiving the RLF indication information of the target secondary cell sent by the terminal.

In another possible implementation manner, the network side device may determine that the physical shared channel of the primary cell and/or the primary secondary cell cannot be scheduled through the target secondary cell under the condition that it is determined that the target secondary cell is deactivated and the RLF indication information of the target secondary cell sent by the terminal is received.

In step 302, a scheduling carrier carrying a physical downlink control channel PDCCH is switched from the target secondary cell to a primary cell and/or a primary secondary cell.

In the above embodiment, when the network side device cannot schedule the physical shared channel of the primary cell and/or the primary and secondary cells through the target secondary cell, and does not configure the associated secondary cell associated with the target secondary cell, the network side device switches the scheduling carrier carrying the physical downlink control channel PDCCH from the target secondary cell to the primary cell and/or the primary and secondary cells, where the PDCCH is used to schedule the physical shared channel of the primary cell and/or the primary and secondary cells, so as to implement fast switching of the scheduling carrier, and perform self-scheduling by the primary cell and/or the primary and secondary cells, and can better adapt to the load and link quality changes, and improve the system resource utilization rate.

In summary, under the condition that it is determined that the primary cell and/or the physical shared channel of the primary and secondary cells cannot be scheduled by the target secondary cell, different scheduling carrier switching modes are adopted according to whether the associated secondary cell is configured. When the associated auxiliary cell associated with the target auxiliary cell is configured, the scheduling carrier is switched from the target auxiliary cell to the associated auxiliary cell, and when the associated auxiliary cell associated with the target auxiliary cell is not configured, the scheduling carrier is switched from the target auxiliary cell to the main cell and/or the main auxiliary cell. Therefore, the problem of insufficient PDCCH resources of the primary cell and/or the primary and secondary cells is solved, the change of load and link quality can be better adapted, and the utilization rate of system resources is improved. The cross-carrier scheduling method provided by the present disclosure is introduced from the terminal side.

In the first scheme, based on the received configuration information of the associated auxiliary cell, it is determined that the network side device switches a scheduling carrier carrying a Physical Downlink Control Channel (PDCCH) from the target auxiliary cell to the associated auxiliary cell.

An embodiment of the present disclosure provides a cross-carrier scheduling method, referring to fig. 4, and fig. 4 is a flowchart of a cross-carrier scheduling method, which is shown in an embodiment, and may be used for a terminal, where the method may include the following steps:

in step 401, configuration information of an associated secondary cell associated with a target secondary cell, which is sent by a network side device, is received.

In step 402, it is determined that the network side device cannot schedule the physical shared channel of the primary cell and/or the primary and secondary cells through the target secondary cell.

In one possible implementation manner, the terminal determines that the network side device cannot schedule the physical shared channel of the primary cell and/or the primary and secondary cells through the target secondary cell under the condition that the target secondary cell is determined to be deactivated.

In another possible implementation manner, the terminal determines that the network side device cannot schedule the physical shared channel of the primary cell and/or the primary and secondary cells through the target secondary cell when the target secondary cell RLF indication information is sent to the network side device.

In step 403, based on the configuration information of the associated secondary cell, it is determined that the network side device switches the scheduling carrier carrying the physical downlink control channel PDCCH from the target secondary cell to the associated secondary cell.

In the above embodiment, the terminal may determine, based on configuration information of the associated secondary cell sent by the network side device, that the network side device will switch the scheduling carrier from the target cell to the associated secondary cell when it is determined that the network side device cannot schedule the physical shared channel of the primary cell and/or the primary and secondary cells through the target secondary cell. The method and the device realize the rapid switching of the scheduling carrier, solve the problem of insufficient PDCCH resources of the main cell and/or the main and auxiliary cells, better adapt to the change of load and link quality and improve the utilization rate of system resources.

In some optional embodiments, the configuration information of the associated secondary cell includes at least one of: a control resource set of the associated secondary cell; the search space of the associated auxiliary cell; and/or, the index value of the primary cell and/or the primary and secondary cells in the scheduling information of the associated secondary cells.

In the embodiment of the present disclosure, after the scheduling carrier is switched to the associated secondary cell, the terminal may determine that the scheduling carrier schedules a physical shared channel of the primary cell and/or the primary and secondary cells based on an index value of the primary cell and/or the primary and secondary cells in scheduling information of the associated secondary cell. The terminal can also determine the position of the PDCCH carried on the scheduling carrier based on at least one of the control resource set of the associated auxiliary cell and the search space of the associated auxiliary cell, so as to demodulate the PDCCH, and based on the PDCCH obtained by demodulation, the purpose of scheduling the physical shared channel of the main cell and/or the main auxiliary cell is realized.

In the second scheme, the configuration information of the associated auxiliary cell which is not received is determined, and the network side equipment is determined to switch the scheduling carrier wave carrying the physical downlink control channel PDCCH from the target auxiliary cell to the main cell and/or the main auxiliary cell.

An embodiment of the present disclosure provides a cross-carrier scheduling method, referring to fig. 5, and fig. 5 is a flowchart of a cross-carrier scheduling method, which is shown in an embodiment, and may be used for a terminal, where the method may include the following steps:

in step 501, it is determined that the network side device cannot schedule the physical shared channel of the primary cell and/or the primary and secondary cells through the target secondary cell.

In step 502, in response to determining that the configuration information of the associated secondary cell associated with the target secondary cell sent by the network side device is not received, it is determined that the network side device switches the scheduling carrier carrying the physical downlink control channel PDCCH from the target secondary cell to the primary cell and/or the primary secondary cell.

In the embodiment of the disclosure, if the terminal does not receive the configuration information of the associated secondary cell associated with the target secondary cell, which is sent by the network side device, the terminal may determine that the network side device does not configure the target secondary cell, and may determine that the network side device switches the scheduling carrier from the target secondary cell to the primary cell and/or the primary secondary cell. I.e. the self-scheduling will be performed subsequently by the primary cell and/or the primary and secondary cell.

In the above embodiment, fast switching of the scheduling carrier is realized, and when the network side device cannot schedule the physical shared channel of the primary cell and/or the primary and secondary cells through the target secondary cell, and does not configure the associated secondary cell associated with the target secondary cell, the primary cell and/or the primary and secondary cells perform self-scheduling, and the network side device can better adapt to the load and the change of the link quality, and improve the utilization rate of system resources.

In some alternative embodiments, referring to fig. 6, fig. 6 is a flow chart of a cross-carrier scheduling method according to an embodiment, the method may include the steps of:

in step 601, the network side device configures an associated secondary cell associated with a target secondary cell.

The target secondary cell is a secondary cell configured to schedule physical shared channels of the primary cell and/or the primary and secondary cells.

In step 602, the network side device sends configuration information of the associated secondary cell to the terminal.

The configuration information of the associated secondary cell comprises at least one of the following: a control resource set of the associated secondary cell; the search space of the associated auxiliary cell; and/or, the index value of the primary cell and/or the primary and secondary cells in the scheduling information of the associated secondary cells.

In step 603, the network side device switches the scheduling carrier carrying the physical downlink control channel PDCCH from the target secondary cell to the associated secondary cell in response to determining that the primary cell and/or the physical shared channel of the primary and secondary cells cannot be scheduled by the target secondary cell.

And the network side equipment responds to the determination that the target auxiliary cell is deactivated, and determines that the physical shared channel of the main cell and/or the main auxiliary cell cannot be scheduled through the target auxiliary cell. Or, the network side equipment responds to the received target auxiliary cell RLF indication information sent by the terminal, and determines that the physical shared channel of the main cell and/or the main auxiliary cell cannot be scheduled through the target auxiliary cell. Or, the network side device may determine that the physical shared channel of the primary cell and/or the primary secondary cell cannot be scheduled through the target secondary cell under the condition that the target secondary cell is determined to be deactivated and the target secondary cell RLF indication information sent by the terminal is received.

In step 604, the terminal determines that the network side device cannot schedule the physical shared channel of the primary cell and/or the primary and secondary cells through the target secondary cell.

In step 605, the terminal determines, based on the configuration information of the associated secondary cell, that the network side device switches the scheduling carrier from the target secondary cell to the associated secondary cell.

In the above embodiment, the network side device is configured to be an associated secondary cell associated with the target secondary cell, and under the condition that the physical shared channel of the primary cell and/or the primary and secondary cells cannot be scheduled through the target secondary cell, the scheduling carrier carrying the physical downlink control channel PDCCH is switched to the associated secondary cell, where the PDCCH is used to schedule the physical shared channel of the primary cell and/or the primary and secondary cells, so as to implement fast switching of the scheduling carrier, solve the problem of insufficient PDCCH resources of the primary cell and/or the primary and secondary cells, and can better adapt to the load and link quality changes, and improve the system resource utilization rate.

In some alternative embodiments, referring to fig. 7, fig. 7 is a flowchart illustrating a cross-carrier scheduling method according to an embodiment, the method may include the steps of:

in step 701, in response to determining that the primary cell and/or the physical shared channel of the primary and secondary cells cannot be scheduled by the target secondary cell, the network side device determines that an associated secondary cell associated with the target secondary cell is not configured.

In step 702, the network side device switches a scheduling carrier carrying a physical downlink control channel PDCCH from the target secondary cell to the primary cell and/or the primary secondary cell.

In step 703, the terminal determines that the network side device cannot schedule the physical shared channel of the primary cell and/or the primary and secondary cells through the target secondary cell.

In step 704, the terminal determines that the network side device switches the scheduling carrier from the target secondary cell to the primary cell and/or the primary secondary cell in response to determining that the configuration information of the associated secondary cell associated with the target secondary cell sent by the network side device is not received.

In the above embodiment, the network side device may switch the scheduling carrier carrying the physical downlink control channel PDCCH from the target secondary cell to the primary cell and/or the primary secondary cell when the physical shared channel of the primary cell and/or the primary secondary cell cannot be scheduled by the target secondary cell, and the associated secondary cell associated with the target secondary cell is not configured, where the PDCCH is used to schedule the physical shared channel of the primary cell and/or the primary secondary cell, so as to implement fast switching of the scheduling carrier, and perform self-scheduling by the primary cell and/or the primary secondary cell, and may better adapt to the load and link quality change, and improve the system resource utilization.

In summary, under the condition that it is determined that the primary cell and/or the physical shared channel of the primary and secondary cells cannot be scheduled by the target secondary cell, different scheduling carrier switching modes are adopted according to whether the associated secondary cell is configured. When the associated auxiliary cell associated with the target auxiliary cell is configured, the scheduling carrier is switched from the target auxiliary cell to the associated auxiliary cell, and when the associated auxiliary cell associated with the target auxiliary cell is not configured, the scheduling carrier is switched from the target auxiliary cell to the main cell and/or the main auxiliary cell. Therefore, the problem of insufficient PDCCH resources of the primary cell and/or the primary and secondary cells is solved, the change of load and link quality can be better adapted, and the utilization rate of system resources is improved.

Corresponding to the foregoing embodiment of the application function implementation method, the present disclosure further provides an embodiment of the application function implementation apparatus.

Referring to fig. 8, fig. 8 is a block diagram of a cross-carrier scheduling apparatus according to an exemplary embodiment, the apparatus for a network side device, including:

a configuration module 801, configured to configure an associated secondary cell associated with a target secondary cell, where the target secondary cell is a secondary cell configured to schedule a physical shared channel of a primary cell and/or a primary secondary cell; and

a first switching module 802, configured to switch, from the target secondary cell, a scheduling carrier carrying a physical downlink control channel PDCCH to the associated secondary cell in response to determining that the primary cell and/or the physical shared channel of the primary and secondary cells cannot be scheduled by the target secondary cell, where the PDCCH is used to schedule the physical shared channel of the primary cell and/or the primary and secondary cells.

Referring to fig. 9, fig. 9 is a block diagram of a cross-carrier scheduling apparatus according to an exemplary embodiment, where the apparatus is used for a network side device, and includes:

a first determining module 901, configured to determine that an associated secondary cell associated with a target secondary cell is not configured in response to determining that a physical shared channel of a primary cell and/or a primary secondary cell cannot be scheduled by the target secondary cell, where the target secondary cell is a secondary cell configured to schedule a physical shared channel of the primary cell and/or the primary secondary cell; and

A second switching module 902, configured to switch a scheduling carrier carrying a physical downlink control channel PDCCH from the target secondary cell to a primary cell and/or a primary secondary cell, where the PDCCH is used to schedule a physical shared channel of the primary cell and/or the primary secondary cell.

Referring to fig. 10, fig. 10 is a block diagram of a cross-carrier scheduling apparatus for a terminal according to an exemplary embodiment, including:

a receiving module 1001, configured to receive configuration information of an associated secondary cell associated with a target secondary cell sent by a network side device, where the target secondary cell is a secondary cell configured to schedule a physical shared channel of a primary cell and/or a primary secondary cell;

a second determining module 1002, configured to determine that the network side device cannot schedule a physical shared channel of a primary cell and/or a primary and secondary cell through the target secondary cell; and

a third determining module 1003, configured to determine, based on the configuration information of the associated secondary cell, that the network side device switches a scheduling carrier carrying a physical downlink control channel PDCCH from the target secondary cell to the associated secondary cell, where the PDCCH is used to schedule a physical shared channel of a primary cell and/or a primary secondary cell.

Referring to fig. 11, fig. 11 is a block diagram of a cross-carrier scheduling apparatus for a terminal according to an exemplary embodiment, including:

A fourth determining module 1101, configured to determine that the network side device cannot schedule the physical shared channel of the primary cell and/or the primary and secondary cells through a target secondary cell, where the target secondary cell is a secondary cell configured to schedule the physical shared channel of the primary cell and/or the primary and secondary cells; and

a fifth determining module 1102 is configured to determine, in response to determining that configuration information of an associated secondary cell associated with the target secondary cell sent by the network side device is not received, that the network side device switches a scheduling carrier carrying a physical downlink control channel PDCCH from the target secondary cell to a primary cell and/or a primary secondary cell, where the PDCCH is used to schedule a physical shared channel of the primary cell and/or the primary secondary cell.

For the device embodiments, reference is made to the description of the method embodiments for the relevant points, since they essentially correspond to the method embodiments. The apparatus embodiments described above are merely illustrative, wherein the elements described above as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the objectives of the disclosed solution. Those of ordinary skill in the art will understand and implement the present invention without undue burden.

Accordingly, the present disclosure also provides a computer readable storage medium storing a computer program for executing the above-mentioned cross-carrier scheduling method for any one of the network side device sides.

Accordingly, the present disclosure also provides a computer readable storage medium storing a computer program for executing the above-mentioned cross-carrier scheduling method for any one of the terminal sides.

Correspondingly, the disclosure also provides a cross-carrier scheduling device, which comprises:

a processor;

a memory for storing processor-executable instructions;

the processor is configured to execute the cross-carrier scheduling method described in any one of the above network side devices.

Fig. 12 is a schematic diagram of a cross-carrier scheduling method apparatus 1200 according to an exemplary embodiment, as shown in fig. 12. The apparatus 1200 may be provided as a network-side device, e.g., a base station. Referring to fig. 12, the apparatus 1200 includes a processing component 1222, a wireless transmit/receive component 1224, an antenna component 1226, and a signal processing portion specific to a wireless interface, and the processing component 1222 may further include at least one processor.

One of the processors in processing component 1222 may be configured to perform the cross-carrier scheduling method described in any of the network side device side devices described above.

a processor;

a memory for storing processor-executable instructions;

the processor is configured to execute the cross-carrier scheduling method of any one of the terminal sides.

Fig. 13 is a block diagram illustrating a cross-carrier scheduler 1300 according to an example embodiment. For example, the apparatus 1300 may be a mobile phone, a tablet computer, an electronic book reader, a multimedia playing device, a wearable device, an in-vehicle user device, ipad, a smart television, and the like.

Referring to fig. 13, apparatus 1300 may include one or more of the following components: a processing component 1302, a memory 1304, a power component 1306, a multimedia component 1308, an audio component 1310, an input/output (I/O) interface 1312, a sensor component 1316, and a communication component 1318.

The processing component 1302 generally controls overall operations of the apparatus 1300, such as operations associated with display, telephone call, data random access, camera operations, and recording operations. The processing component 1302 may include one or more processors 1320 to execute instructions to perform all or part of the steps of the cross-carrier scheduling method described above. Further, the processing component 1302 can include one or more modules that facilitate interactions between the processing component 1302 and other components. For example, the processing component 1302 may include a multimedia module to facilitate interaction between the multimedia component 1308 and the processing component 1302. As another example, processing component 1302 may read executable instructions from a memory to implement the steps of a cross-carrier scheduling method provided by the above embodiments.

The memory 1304 is configured to store various types of data to support operations at the apparatus 1300. Examples of such data include instructions for any application or method operating on the apparatus 1300, contact data, phonebook data, messages, pictures, videos, and the like. The memory 1304 may be implemented by any type or combination of volatile or nonvolatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disk.

The power supply assembly 1306 provides power to the various components of the device 1300. The power supply components 1306 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the device 1300.

The multimedia component 1308 includes a display screen between the device 1300 and the user that provides an output interface. In some embodiments, the multimedia component 1308 includes a front-facing camera and/or a rear-facing camera. When the apparatus 1300 is in an operation mode, such as a photographing mode or a video mode, the front camera and/or the rear camera may receive external multimedia data. Each front camera and rear camera may be a fixed optical lens system or have focal length and optical zoom capabilities.

The audio component 1310 is configured to output and/or input audio signals. For example, the audio component 1310 includes a Microphone (MIC) configured to receive external audio signals when the apparatus 1300 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may be further stored in the memory 1304 or transmitted via the communication component 1318. In some embodiments, the audio component 1310 also includes a speaker for outputting audio signals.

The I/O interface 1312 provides an interface between the processing component 1302 and peripheral interface modules, which may be a keyboard, click wheel, buttons, etc. These buttons may include, but are not limited to: homepage button, volume button, start button, and lock button.

The sensor assembly 1316 includes one or more sensors for providing status assessment of various aspects of the apparatus 1300. For example, the sensor assembly 1316 may detect the open/closed state of the device 1300, the relative positioning of the components, such as the display and keypad of the device 1300, the sensor assembly 1316 may also detect the change in position of the device 1300 or one of the components of the device 1300, the presence or absence of user contact with the device 1300, the orientation or acceleration/deceleration of the device 1300, and the change in temperature of the device 1300. The sensor assembly 1316 may include a proximity sensor configured to detect the presence of nearby objects without any physical contact. The sensor assembly 1316 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 1316 may also include an acceleration sensor, a gyroscopic sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 1318 is configured to facilitate communication between the apparatus 1300 and other devices, either wired or wireless. The apparatus 1300 may access a wireless network based on a communication standard, such as Wi-Fi,2G,3G,4G,5G, or 6G, or a combination thereof. In one exemplary embodiment, the communication component 1318 receives broadcast signals or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 1318 further includes a Near Field Communication (NFC) module to facilitate short range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, ultra Wideband (UWB) technology, bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, apparatus 1300 may be implemented by one or more Application Specific Integrated Circuits (ASICs), digital Signal Processors (DSPs), digital Signal Processing Devices (DSPDs), programmable Logic Devices (PLDs), field Programmable Gate Arrays (FPGAs), controllers, microcontrollers, microprocessors, or other electronic components for performing the cross-carrier scheduling method described in any of the multi-card terminal sides above.

In an exemplary embodiment, a non-transitory machine-readable storage medium is also provided, such as a memory 1304 including instructions executable by the processor 1320 of the apparatus 1300 to perform the above-described cross-carrier scheduling method. For example, the non-transitory computer readable storage medium may be ROM, random Access Memory (RAM), CD-ROM, magnetic tape, floppy disk, optical data storage device, etc.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims

A method for cross-carrier scheduling, the method being performed by a network side device and comprising:

configuring an associated secondary cell associated with a target secondary cell, the target secondary cell being a secondary cell configured to schedule a physical shared channel of a primary cell and/or a primary secondary cell;

and in response to determining that the physical shared channel of the primary cell and/or the primary and secondary cells cannot be scheduled through the target secondary cell, switching a scheduling carrier carrying a Physical Downlink Control Channel (PDCCH) from the target secondary cell to the associated secondary cell, wherein the PDCCH is used for scheduling the physical shared channel of the primary cell and/or the primary and secondary cells.
The method according to claim 1, wherein the method further comprises:

and sending the configuration information of the associated auxiliary cell to the terminal.
The method of claim 2, wherein the configuration information of the associated secondary cell comprises at least one of:

a control resource set of the associated secondary cell;

the search space of the associated auxiliary cell; and/or

And the index value of the primary cell and/or the primary and secondary cells in the scheduling information of the associated secondary cells.
The method according to claim 1, wherein the determining that the primary cell and/or the physical shared channel of the primary and secondary cells cannot be scheduled by the target secondary cell comprises at least one of:

in response to determining that the target secondary cell is deactivated, determining that a physical shared channel of the primary cell and/or primary secondary cell cannot be scheduled by the target secondary cell; and/or

And determining that the physical shared channel of the primary cell and/or the primary and secondary cells cannot be scheduled through the target secondary cell in response to receiving the target secondary cell radio link failure RLF indication information sent by the terminal.
A method for cross-carrier scheduling, the method being performed by a network side device and comprising:

In response to determining that the physical shared channel of the primary cell and/or the primary and secondary cells cannot be scheduled by a target secondary cell, determining that an associated secondary cell associated with the target secondary cell is not configured, the target secondary cell being a secondary cell configured to schedule the physical shared channel of the primary cell and/or the primary and secondary cells;

and switching a scheduling carrier carrying a Physical Downlink Control Channel (PDCCH) from the target auxiliary cell to the main cell and/or the main auxiliary cell, wherein the PDCCH is used for scheduling a physical shared channel of the main cell and/or the main auxiliary cell.
The method of claim 5, wherein the determining that the primary cell and/or the physical shared channel of the primary and secondary cells cannot be scheduled by the target secondary cell comprises at least one of:

in response to determining that the target secondary cell is deactivated, determining that a physical shared channel of the primary cell and/or primary secondary cell cannot be scheduled by the target secondary cell; and/or

And determining that the physical shared channel of the primary cell and/or the primary and secondary cells cannot be scheduled through the target secondary cell in response to receiving the target secondary cell radio link failure RLF indication information sent by the terminal.
A method for cross-carrier scheduling, the method being performed by a terminal and comprising:

Receiving configuration information of an associated auxiliary cell associated with a target auxiliary cell sent by network side equipment, wherein the target auxiliary cell is an auxiliary cell configured to schedule a physical shared channel of a main cell and/or a main auxiliary cell;

determining that the network side equipment cannot schedule a physical shared channel of a main cell and/or a main and auxiliary cell through the target auxiliary cell;

based on the configuration information of the associated auxiliary cell, determining that the network side equipment switches a scheduling carrier carrying a Physical Downlink Control Channel (PDCCH) from the target auxiliary cell to the associated auxiliary cell, wherein the PDCCH is used for scheduling a physical shared channel of a main cell and/or the main and auxiliary cells.
The method according to claim 7, wherein the determining that the network side device cannot schedule the physical shared channel of the primary cell and/or the primary secondary cell through the target secondary cell comprises at least one of:

in response to determining that the target secondary cell is deactivated, determining that the network side device cannot schedule a physical shared channel of a primary cell and/or a primary secondary cell through the target secondary cell; and/or

And in response to the wireless link failure RLF indication information of the target auxiliary cell is sent to the network side equipment, determining that the network side equipment cannot schedule a physical shared channel of a main cell and/or a main and auxiliary cell through the target auxiliary cell.
The method of claim 7, wherein the configuration information of the associated secondary cell comprises at least one of:

a control resource set of the associated secondary cell;

the search space of the associated auxiliary cell; and/or

And the index value of the primary cell and/or the primary and secondary cells in the scheduling information of the associated secondary cells.
A method for cross-carrier scheduling, the method being performed by a terminal and comprising:

determining that the network side equipment cannot schedule the physical shared channel of the main cell and/or the main and auxiliary cells through a target auxiliary cell, wherein the target auxiliary cell is an auxiliary cell configured to schedule the physical shared channel of the main cell and/or the main and auxiliary cells;

and in response to determining that the configuration information of the associated auxiliary cell associated with the target auxiliary cell, which is sent by the network side equipment, is not received, determining that the network side equipment switches a scheduling carrier carrying a Physical Downlink Control Channel (PDCCH) from the target auxiliary cell to a primary cell and/or a primary auxiliary cell, wherein the PDCCH is used for scheduling a physical shared channel of the primary cell and/or the primary auxiliary cell.
The method according to claim 10, wherein the determining that the primary cell and/or the physical shared channel of the primary and secondary cells cannot be scheduled by the target secondary cell comprises at least one of:

In response to determining that the target secondary cell is deactivated, determining that a physical shared channel of the primary cell and/or primary secondary cell cannot be scheduled by the target secondary cell; and/or

And responding to the received target auxiliary cell radio link failure RLF indication information sent by the terminal, and determining that a physical shared channel of a main cell and/or a main auxiliary cell cannot be scheduled through the target auxiliary cell.
The method of claim 10, wherein the configuration information of the associated secondary cell comprises at least one of:

a control resource set of the associated secondary cell;

the search space of the associated auxiliary cell; and/or

And the index value of the primary cell and/or the primary and secondary cells in the scheduling information of the associated secondary cells.
A cross-carrier scheduling apparatus, wherein the apparatus is applied to a network side device, and comprises:

a configuration module, configured to configure an associated secondary cell associated with a target secondary cell, the target secondary cell being a secondary cell configured to schedule a physical shared channel of a primary cell and/or a primary secondary cell; and

and the first switching module is used for switching a scheduling carrier carrying a Physical Downlink Control Channel (PDCCH) from the target auxiliary cell to the associated auxiliary cell in response to determining that the physical shared channel of the main cell and/or the main auxiliary cell cannot be scheduled through the target auxiliary cell, wherein the PDCCH is used for scheduling the physical shared channel of the main cell and/or the main auxiliary cell.
A cross-carrier scheduling apparatus, wherein the apparatus is applied to a network side device, and comprises:

a first determining module, configured to determine that an associated secondary cell associated with a target secondary cell is not configured in response to determining that a primary cell and/or a physical shared channel of a primary and secondary cell cannot be scheduled by the target secondary cell, the target secondary cell being a secondary cell configured to schedule a physical shared channel of the primary cell and/or the primary and secondary cell; and

and the second switching module is used for switching the scheduling carrier wave carrying the Physical Downlink Control Channel (PDCCH) from the target auxiliary cell to the main cell and/or the main auxiliary cell, wherein the PDCCH is used for scheduling the physical shared channel of the main cell and/or the main auxiliary cell.
A cross-carrier scheduling apparatus, wherein the apparatus is applied to a terminal, and comprises:

the receiving module is used for receiving configuration information of an associated auxiliary cell associated with a target auxiliary cell sent by network side equipment, wherein the target auxiliary cell is an auxiliary cell configured to schedule a physical shared channel of a main cell and/or a main auxiliary cell;

a second determining module, configured to determine that the network side device cannot schedule a physical shared channel of a primary cell and/or a primary and secondary cell through the target secondary cell; and

And a third determining module, configured to determine, based on the configuration information of the associated secondary cell, that the network side device switches a scheduling carrier carrying a physical downlink control channel PDCCH from the target secondary cell to the associated secondary cell, where the PDCCH is used for scheduling a physical shared channel of the primary cell and/or the primary secondary cell.
A cross-carrier scheduling apparatus, wherein the apparatus is applied to a terminal, and comprises:

a fourth determining module, configured to determine that the network side device cannot schedule the physical shared channel of the primary cell and/or the primary and secondary cells through a target secondary cell, where the target secondary cell is a secondary cell configured to schedule the physical shared channel of the primary cell and/or the primary and secondary cells; and

and a fifth determining module, configured to determine, in response to determining that configuration information of an associated secondary cell associated with the target secondary cell sent by the network side device is not received, that the network side device switches a scheduling carrier carrying a physical downlink control channel PDCCH from the target secondary cell to a primary cell and/or a primary secondary cell, where the PDCCH is used for scheduling a physical shared channel of the primary cell and/or the primary secondary cell.
A computer readable storage medium, characterized in that the storage medium stores a computer program for executing the cross-carrier scheduling method of any of the preceding claims 1-6.
A computer readable storage medium, characterized in that the storage medium stores a computer program for executing the cross-carrier scheduling method of any one of the preceding claims 7-12.
A cross-carrier scheduling apparatus, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured for performing the cross-carrier scheduling method of any of the preceding claims 1-6.
A cross-carrier scheduling apparatus, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to perform the cross-carrier scheduling method of any one of the preceding claims 7-12.